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Revisiting Location Privacy from a Side-Channel Analysis Viewpoint

  • Clément MassartEmail author
  • François-Xavier Standaert
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11627)

Abstract

Inspired by the literature on side-channel attacks against cryptographic implementations, we describe a framework for the analysis of location privacy. It allows us to revisit (continuous) re-identification attacks with a combination of information theoretic and security metrics. Our results highlight conceptual differences between re-identification attacks exploiting leakages that are internal or external to a pseudonymised database. They put forward the amount of data to collect in order to estimate a predictive model as an important – yet less discussed – dimension of privacy assessments. They finally leverage recent results on the security evaluations/certification of cryptographic implementations to connect information theoretic and security metrics, and to formally bound the risk of re-identification with external leakages.

Notes

Acknowledgments

François-Xavier Standaert is a Senior Research Associate of the Belgian Fund for Scientific Research (FNRS-F.R.S.). This work has been funded in parts by the ERC project SWORD (Consolidator Grant 724725).

Supplementary material

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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.ICTEAM - Crypto GroupUniversité Catholique de LouvainLouvain-la-NeuveBelgium

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